Governor for steam-engines



' (K0 Modell) I 4 4 .N. W. WILLIAMES.

GOVERNOR FOB. STEAM ENGINES. N0. 280,984. Patented July 10, 1883.

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UNITED STATES PATENT Grams,

NAPOLEON W. \VILLIAMES, OF PHILADELPHIA, PENNSYLVANIA.

GOVERNOR FOR STEAM-ENGINES.

SPECIFICATION forming part of Letters Patent No. 280,984, dated July10,1883.

Application filed April 27, 1883.

To all whom, it may concern.-

Be it known that I, NAPOLEON \V. WILL- IAMES, of the city ofPhiladelphia, county of Philadelphia, and State of Pennsylvania, haveinvented an Improvement in Governors for Steam-Engines, of which thefollowing is a specification.

My invention has reference to governors for steam-engines; and itconsists in combining with the usual ball-governor apivoted weighted armor lever adapted to be raised or lowered by the movement of thegovernor-rod by segmental gear of gradual increasing radius, whereby theleverage exerted by said governor-rod to raise said weighted arm shallgradually decrease as the said arm assumes a more horizontal position;further, in combining with the above, mechanism to adjust the relativeposition or angle of said weighted arm with respect to its gear ofvarying radius; further, in forming the stufling or packing box of asmall piston working in a cylinder, and in many details of construction,all of which are fully set forth in the following specification, andshown in the accompanying drawings, which form part thereof.

The object of my invention is to provide suitable means to vary thespeed of the engine without in any wise altering the governor proper, orto change the power of the engine by the admission of more steam whenrunning at its normal speed; also, to make the governor sensitive tovarying pressures in the boiler, and thereby admit more or less steamautomatically, as required.

In the drawings, Figure 1 is a sectional elevation of my improvedgovernor on line a: w, and Fig. 2 is a sectional elevation of same online y y.

A is the governor-frame, and consists of the hearing B, having sleeve orannular collar 1), open part C, having bearings Gand G and cylinder'l).

Supported in the bearing B is the shaft E, provided with a collar, e,working on the top of said bearing, and a bevel-gear wheel, S, on itsbottom, which latter gears with wheel S on shaft T, carried in bearing 0and rotated by pulley U. I

Pivoted to the top of the vertical shaft E are (No model .l

the ball levers or arms F, which carry the balls f on their lower orfree ends.

- F are the links hinged to said arms F at their tops, and pivoted tothe block G, carried by the slide H, having extensions H, which workvertically in the guideways or slots 1). Secured to these extensions Hare links I, which connect with the T-block J, which is guided bybracket J, and provided with the segmental rack K. Secured to this blockJ is the valve or governor shaft L, which is provided with a piston, M,which works in the cylinder D, performing the function of a packing-box.

The bearing 0' carries a shaft, N, secured to which is the segmentalcam-gear 0, whose radii vary at every tooth. This camgear meshes withthe rack K on block J, and is moved thereby. Secured to the outer end ofthe shaft N is a worm-wheel, P, and loosely pivoted to said shaft is anarm or lever, Q, carrying a weight or ball, Q, on its free end, and alsoa worm, It, which is adapted to work with said worm-wheel P, and mayberotated by a handle, R, to adjust the relative position of said arm Qwith respect to said segmental camgear 0.

It is evident that any other suitable mechanism may be used to changethe relative position of said arm with respect to the segmetal cam-gear,and the various parts of the governor may be modified in various wayswithout departing from my invention.

The boiler-pressure being constant,the speed of the engine is controlledby the governor in the usual way. The cam or segmental gear is to assistthe governor-balls to act as sensitively in a high rotary plane as theywould in a lower, for the radius of the cam-gear O shortens when thesaid balls are in a high plane where gravitation increases, and thelever Q and its weight Q exert agreater force to counteract the increaseof power in the governor. By simply turning the handle R and its worm Rthe ball Q, and lever Q may be thrown from a vertical to a horizontalposition, thus multiplying the weight on the said lever and varying itspower to rotate shaft'h and cam-gear O, which latter transmits itsmotion to gear K on block J, and finally to the governor proper. Q, isutilized to its full limit when the lever stands in a horizontal line,and it then takes the same proportion of weight out of thegovernor-balls and allows the engine to run fast er; hence by simplychanging the position of the said lever the engine may be made to runeither faster or slower with the same load and same boiler-pressure. Ifthe boiler-pressure should vary, it acts upon the under side of piston Mand raises or lowers the valve-shaft L, varying the admission of steamto the engine, and thus keeping it in regulation for varyingboiler-pressure. In addition thereto,this piston acts as the stuffing orpacking boX.

No valve is shown in the drawings, as any of the valves at present usedmay be employed, or the rod or shaft L may be made to control a cutoffvalve, as set out in another pending application of mine bearing evendate with this.

Having now described my invention, whatI claim as new, and desire tosecure by Letters Patent, is

1, A centrifugal governor for steam-engines, provided with a weightedarm, means to vary the position of said arm from a vertical to ahorizontal line, and connecting mechanism,

substantially as described, by which the effects of said weighted armare transmitted to the governor shaft or rod with a force increasing inproportion to the elevation or angle said arm makes with a vertical linefor operating the valves, substantially as and for the purposespecified.

2. A centrifugal governor for steam-engines,

The said lever Q, with its ball provided with a weighted arm, means tovary the position of said arm from a vertical to a horizontal line, andcam-gear connecting said arm or its shaft with the governor shaft or rodfor operating the valves, by which the leverage exerted by said weightedarm may be automatically increased or decreased, sub stantially as andfor the purpose specified.

3. A governor provided with a cylinder, D, formed in the governor-frame,and a piston, M, secured to the valve-rod L, and adapted I to work insaid cylinder, substantially as and for the purpose specified.

4. A governor for steam-engines,having its valve-rod provided with asegmental camgear,

K, in combination with shaft N, cam-gear O, lever Q, and weight Q,substantially as and for the purpose specified.

5. A governor for steam-engines,having its valve-rod provided with asegmental cam gear, K, in combination with shaft N, cam-gear O,worm-wheel, worm, lever Q, and weight Q, substantially as and for thepurpose specified.

6. A governor for steam-engines, having a cylinder, D, and its valve-rodprovided with a segmental cam-gear, K, and piston M, in combination withshaft N, cam-gear O, lever Q, and weight Q, substantially as and for thepurpose specified.

In testimony of which inventionlhereunt'o set'my hand.

. NAPOLEON W. WILLIAMES.

Witnesses:

R. M. HUNTER, R. S. CHILD, Jr.

